Cheap Bastard: Busboards are easy

April 27, 2013

Finally, I get some time to myself. But not much, so let’s crack-on.

First I connected-up the PSU to the mains. Now, if you are going to try this yourself I shouldn’t have to tell you to be careful, but I will anyway. BE CAREFUL. I’m not responsible if you fry yourself.

Anyway, I took no chances for first power-up. I stood well back and used a stick to switch it on, and I’m not ashamed of it 😛

But it works. So, out comes the multimeter to measure the veracity of the advertised voltages.

IMG_2036

All looking good. Nice and stable output, no vibration and barely audible noise. The trimpot allows quite accurate tuning, however, it affects all three busses at once, and there is slight variation between them. Not a big deal?

Next was to grab some stripboard, a couple of large capacitors and suitable headers. It turned out that I ordered the wrong IDC connectors. So I have female connectors for the busboard, and male cable clamps. But this is no problem, as they can easily undergo a sex change with the help of some spare pin headers.

IMG_2033

IMG_2031

The connectors are wired as follows:

a100b_e

Initially I won’t be using the +5 bus, so I’ll only need the 10-pin headers. Stripboard makes it easy to follow the busses, and the whole thing took just a few minutes. This is just a first run. I’ll probably reinforce the tracks later. But as it is there seem to be no problems.

IMG_2032

IMG_2034

The capacitors are probably not even needed, but it’s no harm to ensure that the supply is filtered. Some details here.

After connecting the PSU, I measured the voltages at the pins and it seems that we’re in business!

IMG_2039

Let’s have a dance to celebrate:

Cost of each busboard comes in well under 5euro. Now I just need a finished module to power 😛

Advertisements

Comments:

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: